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02-09-2018, 05:27 AM | #1 |
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So picked up an e92 m3.. doing the infamous rod bearings replacement soon ... and after that ... debating
I'm actually happy with the stock power ... but it could use a littttttllllleeeee more Do I go full bolt on and tune and add a decent 40-50 HP To the wheel ( probably $$3.5 k total) ... that would actually put me at a perfect power for street use Or do I go insane and do the ess supercharger 625 kit (about $9k ) ... now honestly you wouldn't even be able to use all the power here but the thought of having it is what makes it so fun hahhahha Right now leaning towards doing a couple full bolt ons with a tune What u think |
02-09-2018, 06:17 AM | #2 |
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You have not had the car long enough to know what you want from it. If you buy a tune and pulley and intake, you will be removing it all if you change you mind and buy a supercharger. I’d wait to decide whether you want a little more or a lot more power. I have all the bolt on mods and think they add 10-15% power, which is definitely noticeable and makes the car entertaining enough for a comfortable cruiser to me. I have a turbo 99 E36M3 that is much faster. I drove my 08 E90M3 stock for about 2 years and then modded it over the next 2 years and have driven it another 3 years and still like it. Cost for me was a factor. I bought my mods mostly used and installed most myself, and spent about $3k. I am thinking about a supercharger now, but it took me a while to get there.
One thing that may make a difference is that I have a 6MT car so I have something to do while driving. If I had a DCT and all I could do to entertain myself was put my foot down, I’d probably get bored much sooner. |
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02-09-2018, 06:20 AM | #3 | |
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I love my SC and would never go back. Very streetable.
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02-09-2018, 06:27 AM | #4 | |
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02-09-2018, 06:48 AM | #5 | |
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I have owned 3 e9x over the years and Im having the same problem deciding as the OP. I already have full akra and just got a tune. Car is fun and spirited but not fast. Will an SC ruin the sweet NA feel? Im not sure as I have driven an SC e92 but not owned one with enough seat time to make a judgement. A 625kit is relatively cheap these days and the car would pick up some nice power but at the same time it still wont be “fast” by todays standards. FBO M4s will still give you problems for example. |
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02-09-2018, 07:12 AM | #6 | |
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A nonintercooled system adds only 4-5 psi and is fine for a street driven car in a cooler area. The upgrade to intercooled is expensive so the OP should consider that as he decides how much power he wants. You can spend $1k on a tune or $10k on an ESS VT650 so there is a range for any budget but try to think ahead do you don’t backtrack and end up spending more in the long run. |
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02-09-2018, 07:16 AM | #7 | |
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On the site a non cooled 550 is $6795 and a cooled 595 is $6995. 625 is right at 8k. |
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02-09-2018, 08:30 AM | #8 | |||
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Why? These kits have been around for nearly a decade and thousands have been sold. There's no need to make projections based on what "seems" true when we have plenty of facts, evidence, and experience to go off of. Extensive testing has been performed and virtually nobody has reported trouble over the years.
http://www.m3post.com/forums/showthread.php?t=702956 Quote:
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https://www.youtube.com/user/longboarder949/videos Quote:
Also true .
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02-09-2018, 11:50 AM | #9 | |
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Good to know on the powerband. I owned an FBO F82 and raced multiple 625 cars. Thats what gave me the impression. M4 tuning has taken some big leaps lately. They can run full E85 on the stock fuel system. |
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02-09-2018, 12:13 PM | #10 | ||
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02-09-2018, 12:16 PM | #11 |
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If you have the money to supercharge why wouldn’t you do it??
The m3 is a complete beast when supercharged...but don’t go ESS I would say gintani or vf |
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02-09-2018, 12:19 PM | #12 |
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just get a supercharger. i was FBO on E85 and it was fun. cars that had around 380-420whp i would beat. anything more i couldnt. ull eventually want more power so then the 3-4k you spent going fbo you could have saved to go to a supercharger (i got a vf620 for 5k used with a custom front heat exchanger) and runs great, i make 584/420 to the wheel on E85 on 7 psi. the money is better spent going boosted. going 9 then 11 psi next. just upping it in stages to see how the car adapts to it.
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02-09-2018, 12:24 PM | #13 | |
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Im not sure how familiar you are with Arizona and Georgia but they are nothing alike in terms of climate. opihi5 VF? Yeeeouch. |
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02-09-2018, 12:27 PM | #14 | |
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The decision should be between ESS and Harrop, depending on which style blower you want. Or AA/Evolve if you are ok with hacking up your front clip to mount an air to air intercooler and want a Rotrex blower.
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02-09-2018, 12:31 PM | #15 | |
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02-09-2018, 12:40 PM | #16 | |
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I would think Arizona is a more extreme climate to test heat soak in than Georgia. Heat soak is a non-issue on a street car with a 550 kit. It may start cutting timing if you're doing very hot track days but would still be completely safe and not give you any trouble whatsoever.
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02-09-2018, 12:41 PM | #17 |
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Get a used ESS 625 with a full exhaust system and enjoy the ride.
I just picked up my SC kit and look forward to the thrill once installed.
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02-09-2018, 12:42 PM | #18 |
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We have had a few cars crack 400whp on our dyno. That combo consists of:
Tune Intake Pulleys Catless X-pipe and preferably lighter wheels Right now with ESS's price drop recently the 595 kit seems to be the best bang for the buck. $7k and will get you in the 500whp club. 8k will get you about 30 more hp with the 625 kit. With a used kit keep in mind you will have to buy the tune again which is $900-1k so add that on top of the price. If you are local to us we still have the free install deal going on ESS superchargers.
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02-09-2018, 12:45 PM | #19 | |
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Iyzmi while Arizona is hotter it does not have much humidity. Georgia on the other hand has 70-80% humidity on top of extreme heat. |
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02-09-2018, 12:52 PM | #20 | |
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Again - it depends on how you're using the car. If you want to track it in high heat/humidity than you should definitely go with an intercooled kit but still expect it to cut timing. On the street, it's a non-issue.
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02-09-2018, 12:54 PM | #21 | |
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02-09-2018, 12:56 PM | #22 |
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full bolt ons wakes the car up but you'll always want more.
when i first installed my ess 625 kit, it did 490whp (on a supposedly low reading dyno) on 91 octane. some maintenance and a new x-pipe later, it was around 516whp. still wanting more, i did the AFD flex fuel kit and got it up to 554whp on E50. again wanting more, i upped the boost to 8 psi so it should easily be 570+whp now. now it's finally getting fun. it seems like 6xxwhp is what it takes to be competitive these days!
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